In iOS, you can easily switch between all of your enabled alternative keyboard by tapping on the globe button at the bottom left of your keyboard (This key only shows up when you have an alternative keyboard enabled). Unfortunately, with this implementation, if you have multiple keyboards enabled, it can be cumbersome tapping the button several times to move through the keyboards one by one until you get to the one you want.

A new free jailbreak tweak called AnyBoard by iOS developer Akasaka Ryuunosuke is now available in Cydia that makes it so much easier for you to now just switch between any desired iOS keyboards of your choice without having to go in a specific order.

With this tweak installed, you can tap and hold on the globe button to show a keyboard list, as shown above. Notably, you can still tap on the globe button to continue moving through your enabled alternative keyboards in order as usual, but this tweak makes it really easy to switch to a keyboard that you might not have enabled, or if you have multiple keyboards enabled, it makes it even easier to switch to the one you really want, since you don't have to move one by one through your enabled alternate keyboards.

The tweak doesn't have any options to configure, but if you don't have the globe button in your keyboard already, you will want to enable at least one of your alternate keyboards via the Keyboard preferences pane in your Settings application, such as the Emoji keyboard. This will make the globe button appear in your keyboard and allow you to use this tweak as intended.

If you want to give the tweak a try, it's available for free in Cydia's BigBoss repository.

what's with devs making tweaks that are native features? you can just hold the globe and the list of keyboards will show and you can select your keyboard you wish to use

Stock, I believe iOS lets you pick between the alternative keyboards that you have enabled, while this tweak lets you pick from any iOS keyboard whether it's enabled or not. There's more to it than meets the eye.

Stock, I believe iOS lets you pick between the alternative keyboards that you have enabled, while this tweak lets you pick from any iOS keyboard whether it's enabled or not. There's more to it than meets the eye.

but seriously, who would want this? if you need all the keyboards, wouldn't you have them enabled anyway? this is the dumbest tweak I've ever seen, no disrespect to the dev who took his/her time. Anthony, it's okay to give a negative review here and there.

Stock, I believe iOS lets you pick between the alternative keyboards that you have enabled, while this tweak lets you pick from any iOS keyboard whether it's enabled or not. There's more to it than meets the eye.

The article above says the "tweak" only shows enabled keyboards so there is no relevant difference really.